hvf-all.c aims to contain the generic accel methods (TYPE_ACCEL),
while hvf-accel-ops.c the per-vcpu methods (TYPE_ACCEL_OPS).
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-16-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-11-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-10-philmd@linaro.org>
TCG profiler was removed in commit 1b65b4f54c.
Fixes: 1b65b4f54c ("accel/tcg: remove CONFIG_PROFILER")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-9-philmd@linaro.org>
Since commit 1b65b4f54c ("accel/tcg: remove CONFIG_PROFILER",
released with QEMU v8.1.0) we get pointless output:
(qemu) info opcount
[TCG profiler not compiled]
Remove that unstable and unuseful command.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-8-philmd@linaro.org>
kvm_create_vcpu() is only used within the same file unit.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-7-philmd@linaro.org>
Since commit 57038a92bb ("cpus: extract out kvm-specific code
to accel/kvm") the kvm_init_cpu_signals() stub is not necessary.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20250703173248.44995-6-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-5-philmd@linaro.org>
- mark s390x runner system tests as allow_fail
- build semihosting once
- add register write support to plugins
- add virtual memory write support to plugins
- add harder memory read/write support to plugins
- add patcher plugin and tests
- re-stock virtio-gpu MAINTAINERS
- fix context init for Venus fences
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Merge tag 'pull-10.1-maintainer-june-2025-020725-1' of https://gitlab.com/stsquad/qemu into staging
Maintainer updates for June (gitlab, semihosting, plugins, virtio-gpu)
- mark s390x runner system tests as allow_fail
- build semihosting once
- add register write support to plugins
- add virtual memory write support to plugins
- add harder memory read/write support to plugins
- add patcher plugin and tests
- re-stock virtio-gpu MAINTAINERS
- fix context init for Venus fences
* tag 'pull-10.1-maintainer-june-2025-020725-1' of https://gitlab.com/stsquad/qemu:
virtio-gpu: support context init multiple timeline
MAINTAINERS: add Akihiko and Dmitry as reviewers
MAINTAINERS: add myself to virtio-gpu for Odd Fixes
plugins: Update plugin version and add notes
plugins: Add patcher plugin and test
tests/tcg: Remove copy-pasted notes and from i386 and add x86_64 system tests to tests
plugins: Add memory hardware address read/write API
plugins: Add memory virtual address write API
plugins: Add enforcement of QEMU_PLUGIN_CB flags in register R/W callbacks
plugins: Add register write API
gdbstub: Expose gdb_write_register function to consumers of gdbstub
semihosting/uaccess: Compile once
semihosting/uaccess: Remove uses of target_ulong type
tests/functional: Add PCI hotplug test for aarch64
gitlab: mark s390x-system to allow failures
Conflicts:
tests/functional/meson.build
Context conflict with commit 7bc86ccbb5 ("tests/functional: test
device passthrough on aarch64"), keep both changes to
tests_aarch64_system_thorough[].
This patch adds functionality to enforce the requested QEMU_PLUGIN_CB_
flags level passed when registering a callback function using the
plugins API. Each time a callback is about to be invoked, a thread-local
variable will be updated with the level that callback requested. Then,
called API functions (in particular, the register read and write API)
will call qemu_plugin_get_cb_flags() to check the level is at least the
level they require.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-4-rowanbhart@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-8-alex.bennee@linaro.org>
Trace memory mapped / unmapped in the guest.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250623121845.7214-8-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
A new field, attributes, was introduced in RAMBlock to link to a
RamBlockAttributes object, which centralizes all guest_memfd related
information (such as fd and status bitmap) within a RAMBlock.
Create and initialize the RamBlockAttributes object upon ram_block_add().
Meanwhile, register the object in the target RAMBlock's MemoryRegion.
After that, guest_memfd-backed RAMBlock is associated with the
RamDiscardManager interface, and the users can execute RamDiscardManager
specific handling. For example, VFIO will register the
RamDiscardListener and get notifications when the state_change() helper
invokes.
As coordinate discarding of RAM with guest_memfd is now supported, only
block uncoordinated discard.
Tested-by: Alexey Kardashevskiy <aik@amd.com>
Reviewed-by: Alexey Kardashevskiy <aik@amd.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Link: https://lore.kernel.org/r/20250612082747.51539-6-chenyi.qiang@intel.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Fixes: c97d6d2cdf ("i386: hvf: add code base from Google repo")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250606164418.98655-7-philmd@linaro.org>
A page state change is typically followed by an access of the page(s) and
results in another VMEXIT in order to map the page into the nested page
table. Depending on the size of page state change request, this can
generate a number of additional VMEXITs. For example, under SNP, when
Linux is utilizing lazy memory acceptance, memory is typically accepted in
4M chunks. A page state change request is submitted to mark the pages as
private, followed by validation of the memory. Since the guest_memfd
currently only supports 4K pages, each page validation will result in
VMEXIT to map the page, resulting in 1024 additional exits.
When performing a page state change, invoke KVM_PRE_FAULT_MEMORY for the
size of the page state change in order to pre-map the pages and avoid the
additional VMEXITs. This helps speed up boot times.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/f5411c42340bd2f5c14972551edb4e959995e42b.1743193824.git.thomas.lendacky@amd.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* target/i386/emulate: more lflags cleanups
* meson: remove need for explicit listing of dependencies in hw_common_arch and
target_common_arch
* rust: small fixes
* hpet: Reorganize register decoding to be more similar to Rust code
* target/i386: fixes for AMD models
* target/i386: new EPYC-Turin CPU model
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* target/i386/kvm: Intel TDX support
* target/i386/emulate: more lflags cleanups
* meson: remove need for explicit listing of dependencies in hw_common_arch and
target_common_arch
* rust: small fixes
* hpet: Reorganize register decoding to be more similar to Rust code
* target/i386: fixes for AMD models
* target/i386: new EPYC-Turin CPU model
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# gpg: Signature made Thu 29 May 2025 03:05:00 EDT
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (77 commits)
target/i386/tcg/helper-tcg: fix file references in comments
target/i386: Add support for EPYC-Turin model
target/i386: Update EPYC-Genoa for Cache property, perfmon-v2, RAS and SVM feature bits
target/i386: Add couple of feature bits in CPUID_Fn80000021_EAX
target/i386: Update EPYC-Milan CPU model for Cache property, RAS, SVM feature bits
target/i386: Update EPYC-Rome CPU model for Cache property, RAS, SVM feature bits
target/i386: Update EPYC CPU model for Cache property, RAS, SVM feature bits
rust: make declaration of dependent crates more consistent
docs: Add TDX documentation
i386/tdx: Validate phys_bits against host value
i386/tdx: Make invtsc default on
i386/tdx: Don't treat SYSCALL as unavailable
i386/tdx: Fetch and validate CPUID of TD guest
target/i386: Print CPUID subleaf info for unsupported feature
i386: Remove unused parameter "uint32_t bit" in feature_word_description()
i386/cgs: Introduce x86_confidential_guest_check_features()
i386/tdx: Define supported KVM features for TDX
i386/tdx: Add XFD to supported bit of TDX
i386/tdx: Add supported CPUID bits relates to XFAM
i386/tdx: Add supported CPUID bits related to TD Attributes
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
QEMU calls kvm_arch_put_registers() when vcpu_dirty is true in
kvm_vcpu_exec(). However, for confidential guest, like TDX, putting
registers is disallowed due to guest state is protected.
Only set vcpu_dirty to true with guest state is not protected when
creating the vcpu.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250508150002.689633-43-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
KVM with TDX support starts to report different KVM_CAP_MAX_VCPUS per
different VM types. So switch to check the KVM_CAP_MAX_VCPUS at vm level.
KVM still returns the global KVM_CAP_MAX_VCPUS when the KVM is old that
doesn't report different value at vm level.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250508150002.689633-31-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Introduce kvm_arch_pre_create_vcpu(), to perform arch-dependent
work prior to create any vcpu. This is for i386 TDX because it needs
call TDX_INIT_VM before creating any vcpu.
The specific implementation for i386 will be added in the future patch.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250508150002.689633-8-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All targets now provide the function, so we can
make the call unconditional.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
M68K, MicroBlaze, OpenRISC, RX, TriCore and Xtensa are
all 32-bit targets. AVR is more complicated, but using
a 32-bit wrap preserves current behaviour.
Cc: Michael Rolnik <mrolnik@gmail.com>
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Tested-by Bastian Koppelmann <kbastian@mail.uni-paderborn.de> (tricore)
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Alpha, HPPA, and SH4 always use aligned addresses,
and therefore never produce accesses that cross pages.
Cc: Helge Deller <deller@gmx.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This was an extremely minor optimization for aarch64
and x86_64, to use a 32-bit AND instruction when the
guest softmmu tlb maximum was sufficiently small.
Both hosts can simply use a 64-bit AND insn instead.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When we moved TLB_MMIO and TLB_DISCARD_WRITE to TLB_SLOW_FLAGS_MASK,
we failed to update atomic_mmu_lookup to properly reconstruct flags.
Fixes: 24b5e0fdb5 ("include/exec: Move TLB_MMIO, TLB_DISCARD_WRITE to slow flags")
Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Errors about TCI are pointless if only tools are being built; suppress
them even if the user did not specify --disable-tcg.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently hvf_enabled() is restricted to target-specific code.
By defining CONFIG_HVF_IS_POSSIBLE we allow its use anywhere.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250403235821.9909-28-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Since commit d5bd8d8267 ("hvf: only update sysreg from owning
thread") hvf-all.c accesses the run_on_cpu_data type and calls
run_on_cpu(), both defined in the "hw/core/cpu.h" header.
Fortunately, it is indirectly included via:
"system/hvf.h"
-> "target/arm/cpu.h"
-> "target/arm/cpu-qom.h"
-> "hw/core/cpu.h"
"system/hvf.h" however doesn't need "target/arm/cpu.h" and we
want to remove it there. In order to do that we first need to
include it in hvf-all.c, otherwise we get:
../accel/hvf/hvf-all.c:61:54: error: unknown type name 'run_on_cpu_data'
61 | static void do_hvf_update_guest_debug(CPUState *cpu, run_on_cpu_data arg)
| ^
../accel/hvf/hvf-all.c:68:5: error: call to undeclared function 'run_on_cpu'
68 | run_on_cpu(cpu, do_hvf_update_guest_debug, RUN_ON_CPU_NULL);
| ^
../accel/hvf/hvf-all.c:68:48: error: use of undeclared identifier 'RUN_ON_CPU_NULL'
68 | run_on_cpu(cpu, do_hvf_update_guest_debug, RUN_ON_CPU_NULL);
| ^
Cc: Mads Ynddal <m.ynddal@samsung.com>
Reported-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Message-Id: <20250507204401.45379-1-philmd@linaro.org>
hv_vcpu_set_sys_reg should only be called from the owning thread of the
vCPU, so to avoid crashes, the call to hvf_update_guest_debug is
dispatched to the individual threads.
Tested-by: Daniel Gomez <da.gomez@samsung.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20250402135229.28143-3-mads@ynddal.dk
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In page_dump/dump_region, use guest_addr_max to check the
size of the guest address space and size the output
appropriately. This will change output with small values
of -R reserved_va, but shouldn't affect anything else.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This macro is used by only one target, and even then under
unusual conditions -- AArch64 with mmap's PROT_MTE flag.
Since page size for aarch64-linux-user is variable, the
per-page data size is also variable.
Since page_reset_target_data via target_munmap does not
have ready access to CPUState, simply pass in the size
from the first allocation and remember that.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Remove GUEST_ADDR_MAX and add guest_addr_max.
Initialize it in *-user/main.c, after reserved_va.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Avoid the use of abi_ptr within ldst_common.c.inc.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, fix a mis-match between user and system
by using vaddr not abi_ptr for the address parameter.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use vaddr instead of abi_ptr or target_ulong for a guest address.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Remove lots and lots of unused headers.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When we changed decode_sleb128 from target_long to
int64_t, we failed to adjust the shift limit.
Cc: qemu-stable@nongnu.org
Fixes: c9ad8d27ca ("tcg: Widen gen_insn_data to uint64_t")
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use the same value for all targets.
Rename TARGET_INSN_START_WORDS and do not depend on
TARGET_INSN_START_EXTRA_WORDS.
Remove TCGContext.insn_start_words.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Move set_helper_retaddr and clear_helper_retaddr
to a new header file.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
